Jazz Jackrabbit (PC)

Before each code, press "p" and then the Backspace key. Then type "dd" and the code:
arjan - HAHAHA displayed
tim - AWESOME displayed
check - displays numbers on the screen
greetz - opens an arjan greetz window
lamer - jump to next level
mark - loose life and start over
apogee - toggles between 16 colors and normal
gunhed - receive every weapons w/ 100 rounds of each and 5
rounds of TNT
doom - makes it harder to destroy enemies and collect ammo
hooker - takes you to the bonus stage after finishing the
current level
hocus - teleports you, provided there's an enemy below or
above you
bad - gives you the hip-hop bird
sable - gives you super sonic speed
cstrike - gives you the air board
bouf - temporarily invincible
ken - exits game